Combined tie rod and grout conduit



1386- 1949 L. TURZILLO COMBINED TIE ROD AND GROUT CONDUIT Filed May 15,1948 Run... a

INVENTOR Lee Turzillo o v I r I I a 1 H v o n I r, y u .5: 6 =2 IATTORNEYS Patented Dec. 13,, 1949 2,491,460 COMBINED TIE, ROD AND GROUTCONDUIT Lee Turzillo, Royal Oak. Mich., assignor to Louis S. Wertz,Cleveland, Ohio Application May 15, 1948, Serial No. 27,315

3 Claims.

This invention relates to concrete forms for use in making concretestructures by the process in which the aggregate is first packed withinthe form and grout under pressure is then forced into the aggregatetofill the voids thereof.

The invention has for an object to provide tie members which connect thesides of the form to resist the outward thrust of the material withinthe form on the side walls and which are also adapted to serve asconduits for the introduction of grout into the form.

A further object is to provide a tubular tie rod which passes through atleast one of the side walls of the form and which is provided with aclamping nut for engagement with the exterior of the form wall and whichis also adapted to serve as a coupling member by means of which a groutsupply conduit may be joined to the tubular tie rod to deliver groutthrough the tubular rod to the interior of the form.

Other objects will be apparent from the fo1- lowing description.

Reference should be had to the accompanying drawings forming a part ofthis specification, in which:

Figure 1 is a fragmentary vertical section through a form embodying theinvention;

Fig. 2 is a fragmentary front elevation of the form;

Fig. 3 is a sectional elevation showing one of the tubular tie rods onan enlarged scale;

Fig. 4 shows the coupling member at the outer ends of the tubular tierod viewed as indicated at 4-4 in Fig. 3;

Fig. 5 is a section taken on the line indicated at 5-5 in Fig. 3; and

Fig. 6 is a vertical section showing the invention applied to a repairform.

Figs. 1 to 4 of the drawings show a form composed of two side wallstructures A that are con" nected by a series of transverse tie rods Bthat extend transversely across the space between the walls and that areconnected to the walls in such manner as to resist the outward thrust ofthe material within the form upon said walls.

Each of the wall structures A is composed of an inner sheathing Iattached to spaced studs 2 that are reinforced by vertically spacedwales 3.

The tie rods B are tubular, being formed of pipe sections and areadapted to serve as conduits through which grout may be introduced intothe form. Each of the tie rods B has an inner or central pipe section 4in the form of a pipe that is of a length slightly less than the spacebetween the walls of the form and each of the sections 4 is providedwith lateral slots 5 through which grout may be discharged into theaggregate within the form. The inner pipe sections 4 are of a lengthslightly less than the space between the sheathings I and are externallythreaded to receive tubular internally threaded coupling sleeves 6 thatmay engage with the sheathings l and serve as spacers.

Outer pipe sections 1 of a length to extend through the side wallstructure and past the outer sides of the wales 3 are externallythreaded at opposite ends and are screwed into the sleeves 6. The outerends of the pipe sections 1 receive sleeve nuts 8 that are screwed uponthe outer ends thereof and each of the nuts 8 has attached thereto bysuitable means such as welding, a washer plate 9 adapted to engage theouter faces of the wales. The nuts 8 have suitable operating handles l0attached thereto by means of which they may be turned to press theplates 9 against the wales 3. The sleeve nuts 8 serve not only asclamping members but also as coupling members to which suitable groutsupply pipes ll may be attached. Grout under pressure is preferablysimultaneously forced into opposite ends of the tubular tie rods B andthis grout is discharged through the lateral slots 5 into the aggregatewithin the form.

The tie rods B may be placed at suitable intervals both longitudinallyand vertically of the form and the grout may be introduced first intothe lower portion of the form and successively at higher levels untilall of the voids of the aggregate are filled with grout.

After the concrete within the form has set the nuts 8 may be removed topermit the walls to be stripped from the forms, after which the pipesections 1 and sleeves 6 are detached from the inner slotted pipesections 4 and the openings in the wall face left by removal of thesleeves 6 are plugged with mortar to completely embed the pipe sections4. To facilitate the removal of the sleeves 6 the threading of the outerends of the sleeves 6 and the inner end of the pipe sections 1 may be ofthe opposite hand to that of the ends of the pipe section 4 and theinner ends of the sleeves 6 as shown in Fig. 3, so that by turning apipe section 1 in a direction to screw it into its sleeve 6 it willcause the section I and sleeve 6 to turn together in a direction tounscrew the sleeve 6 from the inner section 4. If desired the sleeve 6may be formed with its outer end of slightly greater external diameterthan its inner end to provide a taper thatwill facilitate removal of thesleeve from the wall.

In the repairing of masonry structures one wall of the form may beformed by the structure being repaired, in which case anchoring membersl2 are secured in the masonry structure at suitably spaced points, andeach of these anchoring members has an outer socket portion l4 intowhich an end of a slotted pipe section 4 may be screwed. Except for theanchoring members I2 the tie rods are the same as above described. Theouter ends of the sections 4 of the tie rods have coupling sleeves 6attached thereto which receive tubular sections 1 that extend through awall which may be identical with the walls shown in Figs. 1 and 2.

Any suitable means may be provided for coupling the grout supply pipe tothe sleeve nuts 8.

As herein shown a coupling of the bayonet type v is provided in which acoupling member 15 is secured to the nut 8 by means of a short threadedconnecting member It, the member l5 having an interrupted flange l'ladapted to enter a coupling member l8 carried by the conduit 1 I whichcan be interlocked with the member l5 by a relative turning movement.

It is to be understood that in accordance with the provisions of thepatent statutes variations and modifications of the specific inventionherein shown and described may be made without departing from the spiritof the invention.

What I claim is:

1. A concrete form having side walls, and tubular tie rods extendingacross the space between said walls and attached to said walls, saidtubular tie rods each comprising a slotted section between said sidewalls and a section detachably connected to said slotted section andextending through one of said side walls, said tie rods providingconduits through which grout may be introduced into the form.

2. A concrete form having side walls, and tie rods extending across thespace between said walls and attached to one of said walls, said tierods each comprising a slotted tubular section anchored at one end toone side wall, a coupling sleeve screwed upon the other end of theslotted section and a tubular section screwed into said sleeve andextending through the latter side wall, said tie rods" forming'conduitsthrough which grout may be introduced into the form.

3. A concrete form having side walls, and tubular tie rods extendingacross the space be tween said walls and attached to said walls, saidtubular tie rods each having a slotted section between said side walls,an internally threaded coupling sleeve at each end of each slotted section bearing against the inner faces of said side walls, tubularsections extending through the side walls and screwed into said couplingsleeves, and sleeves screwed upon the outer ends of the latter sections,the latter sleeves serving as clamping nuts and as connecting membersfor attachment of grout supply conduits to said tubular tie rods.

LEE TURZILLO.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,255,156 Goff Feb. 5, 19181,938,153 Reeves Dec. 5, 1933 1,972,001 Witham Aug. 28, 1934 2,313,110Wertz Mar; 9, 1943

